Two former Parramatta Eels players are accused of harbouring semi-automatic weapons and possessing more than half-a-million dollars in cash after dramatic arrests in Sydney's Centennial Park yesterday.

Turnbull returns to Australia as final parliament sitting begins

Prime Minister Malcolm Turnbull will be back in Australia on Monday in time for the start of the final parliamentary sitting fortnight of the year.

The prime minister returns from a series of international meetings in Indonesia, Germany, Turkey, the Philippines and Malaysia.

As has been the case during his travels, the threat from Islamic State is set to dominate the agenda with debate resuming on draft laws to strip dual nationals suspected of terrorism of their Australian citizenship.

The government is also facing attack over the decision to allow Darwin's port to be leased to a Chinese company while blocking the foreign sale of Australia's largest private land owner on national interest grounds.

Independent Senator Nick Xenophon, with the backing of Labor, wants a Senate inquiry into the deal.